Daikin FTXS30HVJU - Position Sensor Abnormality

SiUS04-924 Troubleshooting
Service Diagnosis 91
4.17 Position Sensor Abnormality
Remote
Controller
Display
H6
Method of
Malfunction
Detection
A compressor startup failure is detected by checking the compressor running condition through the
position detection circuit.
Malfunction
Decision
Conditions
 The compressor fails to start in about 15 seconds after the compressor run command signal is
sent.
 Clearing condition: Continuous run for about 5 minutes.
 The system will be shut down if the error occurs 8 times.
Supposed
Causes
 Compressor relay cable disconnected
 Compressor itself defective
 Outdoor unit PCB defective
 Stop valve closed
 Input voltage out of specification